AI Article Synopsis
- Recent studies revealed unexpected increases in contaminant levels in European perch and EROD activity in perch and eelpout at a Swedish coastal site.
- Findings indicated that a dietary change and better overall health of perch were linked to higher mercury levels, while an invasive polychaete may have facilitated greater release of organic contaminants.
- The study concluded that contaminant uptake routes differed among fish species, with diet-related contamination trends varying even within the same environment.
Article Abstract
Unexpected increasing trends in the concentration of contaminants in European perch (Perca fluviatilis) and in activity of ethoxyresorufin-O-deethylase (EROD) in European perch and eelpout (Zoarces viviparus) have been observed at a Swedish coastal reference site. This study uses data from different sources to investigate plausible explanations. The results showed that a change in diet and an improved overall condition coincide with an increase in mercury in European perch. Furthermore, an increase in several organic contaminants in European perch coincided with the introduction of an invasive deep-burrowing polychaete, which likely contributed to the release of contaminants through bioturbation. The increase in EROD-activity in both species seems to be related to contaminants that reach the fish through the water rather than the diet. The results show that for contaminants that are taken up via the diet, trends in contamination can be opposite for different species of fish in the same area.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.etap.2020.103455 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Optimizing Eurasian Perch Production: Innovative Aquaculture in Earthen Ponds Using RAS and RAMPS-Economic Perspective.
Animals (Basel)
October 2024
Department of Tourism, Recreation and Ecology, Institute of Engineering and Environmental Protection, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, ul. Oczapowskiego 5, 10-719 Olsztyn, Poland.
Aquaculture in rural areas, carried out in accordance with current EU requirements, aims to contribute significantly to the conservation of the biodiversity of aquatic resources, the protection of which is a prerequisite for sustainable economic and social development. The objective of this study was to present the conceptual and technical framework and to analyze the costs and profitability of producing the consumer-attractive Eurasian perch ( L.) based on the untapped potential of hatchery infrastructure and dedicated earthen ponds for common carp ( L.
View Article and Find Full Text PDFBiomechanical and morphological determinants of maximal jumping performance in callitrichine monkeys.
J Exp Biol
September 2024
Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), 4209 State Road 44, Rootstown, OH 44272, USA.
Article Synopsis
- The study investigates the jumping abilities of three types of callitrichine monkeys, linking their performance to skeletal structure and evolutionary adaptations.
- Results indicate a correlation between jumping performance, anatomical features, and different jumping strategies among the species, showing how body structure influences their leaping methods.
- The findings highlight potential ways to better interpret jumping capabilities in the fossil record, suggesting anatomical and behavioral traits are key to understanding evolutionary fitness.
Exposure to polyethylene microplastics exacerbate inflammatory bowel disease tightly associated with intestinal gut microflora.
RSC Adv
August 2024
Mahatma Gandhi Medical Advanced Research Institute (MGMARI), Sri Balaji Vidyapeeth (Deemed to be University) Pondy-Cuddalore Main Road, Pillaiyarkuppam Pondicherry - 607402 India.
Polyethylene microplastics (PE MPs) have sparked widespread concern about their possible health implications because of their abundance, pervasiveness in the environment and in our daily life. Multiple investigations have shown that a high dosage of PE MPs may adversely impact gastrointestinal health. In tandem with the rising prevalence of Inflammatory bowel disease (IBD) in recent decades, global plastic manufacturing has risen to more than 300 million tons per year, resulting in a build-up of plastic by-products such as PE MPs in our surroundings.
View Article and Find Full Text PDFChemical properties indices for nutritional quality evaluation of Nasser Lake fish, Aswan, Egypt.
Open Vet J
June 2024
Food Science and Technology Department, Faculty of Agriculture and Natural Resources, Aswan University, Aswan, Egypt.
Background: Fish is considered an important food because it includes main nutrients (proteins, fats, and ash) and micronutrients (vitamins and minerals). The assessment of fish nutritional content data may offer crucial recommendations regarding freshwater fish consumption and preserving human well-being.
Aim: Evaluate the safety and quality properties of Nasser Lake fish, Aswan, Egypt.
Tracking the invasive and euryhaline pikeperch Sander lucioperca in the lower River Thames using acoustic telemetry indicates no movements into areas of relatively high salinity.
J Fish Biol
October 2024
Salmon & Freshwater Team, Centre for Environment, Fisheries & Aquaculture Science, Lowestoft, UK.
Article Synopsis
- The invasive pikeperch Sander lucioperca, native to Central and Eastern Europe, can tolerate high salinity levels, but it's uncertain if they use this ability to thrive in brackish environments.
- Researchers studied their movement patterns in the upper River Thames estuary using acoustic telemetry and found that pikeperch could travel quickly but did not venture into the more saline areas of the estuary.
- The findings suggest that invasive pikeperch prefer less saline waters and indicate that management efforts should prioritize controlling their spread in freshwater habitats rather than in high salinity zones.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!